The device wasn't supported by the kernel before the patch, so it was running in mouse emulation mode. That is usually a firmware feature, we often see this on new touchpads before we add support and switch them to raw mode. To userspace (i.e. X.Org) it looked like a mouse device, the gesture support that betzi pointed out in Comment #2 (double click, right click, ...) was implemented in the firmware and looked like normal mouse buttons to us.
With the new kernel, the device is now switched to raw mode, i.e. we get the correct coordinates and we get multitouch features. evdev has supported MT since 2012 or so. What it doesn't do though is gestures though, so those got lost and now rely on the client stack. evdev does some right button emulation, but that's for legacy touchscreens, not true multitouch screens. If you want this bug closed you need to either support the gestures in the client stack, or drop the patch that _enabled_ the device in the kernel so it goes back to firmware emulation mode. That is of course assuming that the gestures are the issue here, I've asked for more clarification. If the device doesn't work at all, it's a kernel issue but the fdo bug suggests that kernel 3.15 works. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/998546 Title: 0408:3003 [Packard Bell oneTwo (PW.U6C)] Touch-screen did work on 11.04 but no longer works on 12.04 Status in “xorg-server” package in Ubuntu: Triaged Bug description: My touch-screen, Quanta Computer OpticalTouchScreen, used to work on Natty 11.04. But on Precise 12.04 it is not recognised. I understand this was supposed to have been fixed but it does not work on my system. I am not sure what other information to provide for you, so here is some: Ubuntu 12.04 LTS 64-bit (fully updated) Linux Daisy 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux http://askubuntu.com/questions/134505/touchscreen-broken-after- installing-12-04 Thank you. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-24-generic 3.2.0-24.37 ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14 Uname: Linux 3.2.0-24-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** card 0: PCH [HDA Intel PCH], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 ApportVersion: 2.0.1-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: paddy 2030 F.... pulseaudio /dev/snd/controlC1: paddy 2030 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0xfe520000 irq 46' Mixer name : 'Realtek ALC662 rev1' Components : 'HDA:10ec0662,10250012,00100101' Controls : 31 Simple ctrls : 16 Card1.Amixer.info: Card hw:1 'CNFA257'/'Chicony Electronics Co., Ltd. CNFA257 at usb-0000:00:1a.0-1.5, high speed' Mixer name : 'USB Mixer' Components : 'USB04f2:b28b' Controls : 2 Simple ctrls : 1 Date: Sat May 12 21:24:09 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301) MachineType: Packard Bell oneTwo L5861 ProcEnviron: LANGUAGE=en_GB:en PATH=(custom, user) LANG=en_GB.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=a7c09981-302e-47e6-b6dc-5389ae51499e ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-24-generic N/A linux-backports-modules-3.2.0-24-generic N/A linux-firmware 1.79 RfKill: SourcePackage: linux StagingDrivers: r8712u mei UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/08/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P01-A4 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: oneTwo L5861 dmi.board.vendor: Packard Bell dmi.chassis.type: 3 dmi.chassis.vendor: Packard Bell dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP01-A4:bd03/08/2011:svnPackardBell:pnoneTwoL5861:pvr:rvnPackardBell:rnoneTwoL5861:rvr:cvnPackardBell:ct3:cvr: dmi.product.name: oneTwo L5861 dmi.sys.vendor: Packard Bell To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/998546/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
